Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Schedule of Earnings Per Share

	Three Months Ended September 30,
	2017			2016
	Class A		Class B	Class A	Class B
	(In thousands except per share amounts)
Numerator for Basic and Diluted Earnings Per Share:
Net income	$	21,813		33,736
Dividends - Class A shares	—			—
Dividends - Class B shares	—			—
Undistributed income	$	21,813		33,736
Allocation of net income:
Dividends	$	—	—	—	—
Allocation of undistributed income	21,196		617	32,782	954
Net income	$	21,196	617	32,782	954
Denominator:
Basic earnings per share - weighted-average shares	3,436		200	3,436	200
Effect of dilutive stock options	—		—	—	—
Diluted earnings per share - adjusted weighted-average shares for assumed conversions	3,436		200	3,436	200
Basic Earnings Per Share	$	6.17	3.08	9.54	4.77
Diluted Earnings Per Share	$	6.17	3.08	9.54	4.77

	Nine Months Ended September 30,
	2017			2016
	Class A		Class B	Class A	Class B
	(In thousands except per share amounts)
Numerator for Basic and Diluted Earnings Per Share:
Net income	$	70,834		77,280
Dividends - Class A shares	—			—
Dividends - Class B shares	—			—
Undistributed income	$	70,834		77,280
Allocation of net income:
Dividends	$	—	—	—	—
Allocation of undistributed income	68,831		2,003	75,095	2,185
Net income	$	68,831	2,003	75,095	2,185
Denominator:
Basic earnings per share - weighted-average shares	3,436		200	3,436	200
Effect of dilutive stock options	—		—	—	—
Diluted earnings per share - adjusted weighted-average shares for assumed conversions	3,436		200	3,436	200
Basic Earnings Per Share	$	20.03	10.02	21.85	10.93
Diluted Earnings Per Share	$	20.03	10.02	21.85	10.93